Blood — the substance of life itself. In biblical theology, haima carries immense sacrificial weight: blood represents life given, atonement made, and covenant sealed. The NT consistently points to Christ's blood as the ultimate and final sacrifice.
The entire sacrificial system of the OT finds its fulfillment in Christ's blood. 'Without the shedding of blood there is no forgiveness' (Hebrews 9:22). At the Last Supper, Jesus declared the cup 'my blood of the covenant' (Matthew 26:28), linking His death to the Passover and the new covenant promised in Jeremiah 31. Paul speaks of redemption 'through his blood' (Ephesians 1:7). Blood is both the cost and the currency of salvation.